While playing last night the "@" symbol popped onto the screen as one of the letters players were to use in their acro! Of course all the peeps in the room tried to use @ in their acro, but the game parameters rejected everyone's entry. So, no acro to vote on, and the game went on to the next round. I thought having the @ symbol as a legitimate "letter" for creating my acro was an interesting idea, but it seems as if this is a bug in the program. I've been playing this incarnation of the game since it's inception and have never seen the @ sign appear on the screen- until now.